Greatest Common Factor of 64, 72, 45, 78

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 64, 72, 45, 78 by common division method
• Greatest Common Factor of 64, 72, 45, 78 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Greatest Common Factor

We found the factors 64,72,45,78 . The biggest common factor number is the GCF number.
So the greatest common factor 64,72,45,78 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 50, 14, 90, 31
• GCF of 98, 44, 50, 51
• GCF of 59, 35, 98, 14
• GCF of 31, 54, 40, 30
• GCF of 68, 21, 85, 23

1. What is the GCF of 64, 72, 45, 78?

Answer: GCF of 64, 72, 45, 78 is 1.

2. How to Find the GCF of 64, 72, 45, 78

Answer: Greatest Common Factor(GCF) of 64, 72, 45, 78 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(64, 72, 45, 78) = 1.